Alarm-clock.



E. E. STOCKTON.

ALARM CLOCK.

APPLICATION FILED APR. 6, 1912.

Patented Jan.14,1913.

COLUMBIA PLANDORAFM Co.,wAsHmoTON, 0.1:.

.UNITED STATES PATENT OFFICE.

ELMER E. STOCKTON, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE E. INGRAHAM00., OF BRISTOL, CONNECTICUT, A CORPORATION.

ALARM-CLOCK.

Specification of Letters Patent.

Patented Jan. 14,1913.

Application filed April 6, 1912. Serial No. 689,020. I

'1 '0 It 10/1.0mm concern Be it known that I, ELMER E. STOCKTON, acitizen of the United States, residing at Bristol, in the county ofHartford and State of Connecticut, have invented a new and usefulImprovement in Alarm-Clocks; and I do hereby declare the following, whentaken in connection with the accompanying drawings and the characters ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this application,and represent, in-

Figure 1 a face view illustrating a clock case and a portion of thealarm mechanism illustrating my improved method for arresting themovement thereof. Fig. 2 a broken view with the front movement plateremoved. Fig. 3 a vertical sectional view showing the alarm arrestingplunger in its raised. position. Fig. 4 a similar view showing the alarmarresting mechanism in its depressed or operating position. Fig. 5 asectional view illustrating a modified form of plunger. Fig. 6illustrates provision for the engagement of the plunger with variousparts of the alarm mechanism.

This invention relates to an improvement in alarm clocks, andparticularly to mechanism for stopping or releasing the alarm mechanism;that is, it is sometimes desirable to prevent the alarm from sounding,and sometimes it is desirable to stop the alarm mechanism after it hasbegun operation.

The object of this invention is to arrange the means for controlling thealarm mechanism through the ring-head commonly ap plied to alarm clockcasing so that the means is at convenient point for operation; and theinvention consists in the construction hereinafter described andparticularly recited in the claims.

In carrying out my invention I employ a plunger 2 vertically movable inand extending above and below a fixed ring-head 3 formed at its lowerend with a threaded stem which passes downward through a perforation inthe apex of the thin sheet-metal peripheral band 4 of the clock-ease,which is reinforced at this point by a heavy wrought-metal bracket 16secured, as clearly shown in Figs. 3 and 4. to the upper edge of thefront movement-plate 15 of the clockmovement. This bracket is formedwith a horizontal arm having a threaded perforation 17 for the receptionof the tl'n'eaded stem at the lower end of the ring-head 3 which is thusfirmly supported so that when the plunger 2 is suddenly pushed downwardthe force of the blow will be taken by the bracket 16 rather than by thethin sheetmetal band 4, the bracket extending under the band at alongthe line where it receives the greatest force of the downward thrust ofthe plunger. The ring-head supports the usual ring or handle 5. Attheupper end of this plunger is a finger-piece or button (3 of any desireddesign. The lower end of the plunger '2 extends down into the path of apin 7 projecting from one side of a crown wheel 8 which controls thealarm mechanism. As shown in Figs. 3 and a of the drawings, the plungeris provided near its end with an annular notch 9 which is adapt.- ed tobe engaged by a. friction spring or stop arm 10 the outer end of whichis fastened to the upper portion of the bracket 16, as clearly shown inFigs. 3 and 4t. This friction spring or stop arm serves two purposes:first, to prevent the accidental movement of the plunger and hold iteither in its depressed or raised position; and, second, by entering thenotch 9 prevents the withdrawal of the plunger, but does not interferewit-h the downward movement thereof as the plunger in its downwardmovement rides over the end of the arm, thus permitting the-plunger tobe inserted after the clock has been assembled. The plunger may beremoved by pressing the tension spring or stop-arm back out of the notch9 when it is desired to take the movement out of the clock. Instead,however, of providing the arm 10, the upper portion of the plunger maybe smaller than the lower end, as shown in Fig. 5 of the drawings, andin case the alarm mechanism is located. at a point considerably belowthe top of the clock case, requiring a long plunger. a spring finger 14may be attached to the front plate 15 and so as to bear upon the lowerend of the plunger to prevent its accidental movement, this springservingto hold the plunger in either its depressed or raised position.In this case the plunger will be entered through the ring-head from thelower end, and the button or head 6 subsequently attached.

Instead of having the plunger engage with a pin projecting from one sideof the crown wheel, it is apparent, without illustration, that it mightengage directly with the teeth of the crown wheel, or the plunger mayengage with an arm ll carried by a verge 12 as shown in Fig. 6 of thedrawings. It is also apparent without illustration, that this arminstead of being attached to the verge, might be mounted in a vergeshaft 13, or it might be the end of the hammer tail. In either case thedownward movement of the plunger arrests the operation of the alarmmechanism and prevents. the alarm from sounding, or if the alarm issounding, may stop the alarm movement.

The foregoing description and illustration will be sufficient to enableothers to so arrange a vertically movable plunger in the ring-head as tointerrupt or stop the alarm HIQChiUllSlD when desired.

I claim:

1. In an alarm clock, the combination with the case thereof, of aring-head there for, an alarm mechanism located within the case. avertically movable plunger mounted in the said ring-head and extendingabove the same for its manual operation by its upper end and below thesame into the cl0ck-case for the engagement of its lower end directlywith the crown wheel of the alarm mechanism and a spring co-act-ingdirectly with the said plunger for holding the same in engagement withthe said crown-wheel and out of engagement therewith.

2. In an alarm clock, the combination with a case having a peripheralsheet-metal band, of an alarm mechanism. located within the said case, abracket secured to one of the plates of the said alarm-meehanism, andextending upward under the said band at the apex thereof so as to.support the same. a ring-head mounted in the said bracket and passingthrough the top of the said band, a vertically movable plunger extendingupward through the said ring-head for being manually operated andextending downward through the said ring-head into the said case toco-act with the alarm mechanism for arresting the movement thereof.

In an alarm clock, the combination with the case thereof, of a ring-headtherefor, an alarm mechanism located within the case and having acrown-wheel carr 'iug z stop-pin, a plunger mounted in the saidring-head and adapted at its projecting upper end to be engaged for itsmanual operation and extending downward at its lower end into the saidcase and adapted at its lower end to co-act with the said stop-pin, anda spring coa.cting with the plunger for controlling the positionthereof.

1.. In an alarm clock, the combination with the case thereof, of aring-head therefor, an alarm mechanism located within the case. aplunger mounted in the said ringhead, extending above the same formanual operation. and extending dowmvard through the same into the casefor CO-RCtlOll with the alarm mechanism for arresting the move mentthereof the lower end of the said plunger being formed with a groove;and a spring entering the groove of the plunger for controlling thelongitudinal movementthereof. and preventing it from being pulled out ofthe said ring-head by its outer end.

In testimony whereof. I have signed this specification in the presenceof two subscribing witnesses.

ELHER l"). CTOC Kl( )N.

lVitnesses lVM. P. llYNDsi n. J. Lanes.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of Patents.

